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Finding the Fourth Proportional to 149,215.80, 223,511.44 and 90,020.20

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Solution

The fourth proportional to 149,215.80, 223,511.44 and 90,020.20 is: 134,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,215.80 : 223,511.44 = 90,020.20 : x
  2. Step 2: Convert to fraction form
    149,215.80/223,511.44 = 90,020.20/x
  3. Step 3: Cross multiply
    149,215.80x = 223,511.44 × 90,020.20
  4. Step 4: Simplify right side
    149,215.80x = 20,120,544,531.09
  5. Step 5: Solve for x
    x = 20,120,544,531.09/149,215.80
  6. Step 6: Final answer
    x = 134,841.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.